- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 41/52 - Multiple coating or impregnating
Patent holdings for IPC class C04B 41/52
Total number of patents in this class: 741
10-year publication summary
|
50
|
52
|
55
|
44
|
48
|
45
|
54
|
56
|
56
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13777 |
74 |
| Rtx Corporation | 9765 |
44 |
| Rolls-Royce Corporation | 1691 |
42 |
| Safran Ceramics | 420 |
27 |
| Goodrich Corporation | 2189 |
19 |
| Centre National de La Recherche Scientifique | 10812 |
18 |
| Rolls-Royce High Temperature Composites, Inc. | 135 |
16 |
| Honeywell International Inc. | 13564 |
15 |
| Corning Incorporated | 10396 |
12 |
| Safran Aircraft Engines | 6473 |
10 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 493 |
10 |
| Universite de Bordeaux | 904 |
10 |
| Sumitomo Electric Hardmetal Corp. | 1063 |
9 |
| Applied Materials, Inc. | 19717 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10971 |
9 |
| UNILIN, besloten vennootschap | 940 |
8 |
| Axalta Coating Systems IP Co., LLC | 472 |
7 |
| SAFRAN S.A. | 637 |
6 |
| James R. Glidewell Dental Ceramics, Inc. | 259 |
6 |
| Monalisa Group Co., Ltd. | 39 |
6 |
| Other owners | 384 |